diff --git a/Sprint-3/alarmclock/alarmclock.js b/Sprint-3/alarmclock/alarmclock.js
index 6ca81cd3b..d1a4fd652 100644
--- a/Sprint-3/alarmclock/alarmclock.js
+++ b/Sprint-3/alarmclock/alarmclock.js
@@ -1,4 +1,64 @@
-function setAlarm() {}
+let timerInterval = null;
+
+// Resets timer state
+function resetTimer() {
+ if (timerInterval !== null) {
+ clearInterval(timerInterval);
+ timerInterval = null;
+ }
+
+ // Stop any playing alarm sound
+ pauseAlarm();
+
+ // Reset display to 00:00
+ updateTimeDisplay(0);
+}
+
+//Starts the alarm counbtdown
+function setAlarm() {
+ // Read the minutes value from the alarm input field
+ const minutesInput = document.getElementById("alarmSet");
+ const seconds = parseInt(minutesInput.value, 10);
+
+ // Ignore invalid or non-positive input
+
+ if (isNaN(seconds) || seconds <= 0) {
+ return;
+ }
+ // Reset any existing timer first
+ resetTimer();
+
+ //local variable (no global sharing)
+ let remainingSeconds = seconds;
+
+ // Update display immediately
+ updateTimeDisplay(remainingSeconds);
+
+ // Start countdown
+ timerInterval = setInterval(() => {
+ remainingSeconds--;
+
+ updateTimeDisplay(remainingSeconds);
+
+ if (remainingSeconds <= 0) {
+ resetTimer();
+ updateTimeDisplay(0);
+ playAlarm();
+ }
+ }, 1000);
+}
+
+// Converts remainingSeconds into MM:SS format and updates the display
+function updateTimeDisplay(remainingSeconds) {
+ const minutes = Math.floor(remainingSeconds / 60);
+ const seconds = remainingSeconds % 60;
+
+ const formattedMinutes = minutes.toString().padStart(2, "0");
+ const formattedSeconds = seconds.toString().padStart(2, "0");
+
+ const timeDisplay = document.getElementById("timeRemaining");
+ timeDisplay.textContent = `Time Remaining: ${formattedMinutes}:${formattedSeconds}`;
+}
// DO NOT EDIT BELOW HERE
diff --git a/Sprint-3/alarmclock/index.html b/Sprint-3/alarmclock/index.html
index 48e2e80d9..66748001e 100644
--- a/Sprint-3/alarmclock/index.html
+++ b/Sprint-3/alarmclock/index.html
@@ -1,10 +1,10 @@
-
+
- Title here
+ Alarm clock app